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AT173869B Expired / Lapsed AT ⏱️ 0.0 years remaining

Arrangement for the high-frequency pre-magnetization of sound text carriers for magnetic sound recordings

Assignee: Siemens Ag
•
Filing: 1950-04-12
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Granted: 1953-02-10
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Expires: 1970-04-12
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Abstract

No abstract record available.

Inventors

  • 👤 Lois Ing Leitner

Bibliographic Details

Application Number —
Jurisdiction AT
Data Source google_patents
Last Synchronized 2026-11-04 11:47
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/02

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